Experience the calming sounds of preflight helicopter operations. This video captures the intricate details and processes ...

Helicopters have one of the most recognizable sounds in aviation. The signature "whop whop" or deep thumping sound announces its arrival long before it appears in the sky. It's a sound so iconic, it's ...

Recording content is continuous helicopter engine and rotor sounds. Recording is source material for David Ireland's installations. Notes copied from the tape: Helicopter Original '93. David Kenneth ...